The aim of this paper is to provide a uniform analysis for Spanish subextraction from subject. In Spanish, subextraction out of subject noun phrases is allowed at the position where subjects are base-generated. Furthermore, subextraction can occur even when the subjects move to Spec-T or Spec-C. The existing analysis cannot provide a satisfactory account for these syntactic properties in that it has been considered that extraction from the moved elements is not possible or subject is an opaque domain for subextraction. I argue that subextraction from subjects depends on labeling of the syntactic object {XP, YP} formed by the subject and the element extracted out of it, following the labeling algorithm proposed by Chomsky(2013, 2015). I propose that merge can yield an exocentric structure sharing a prominent feature and only categories with label undergo movement. In order to support my proposal, I provide some subextraction constructions in which wh-phrase and focus element are extracted out of subjects composed of different kinds of determiners.